diff options
| -rw-r--r-- | net/mac80211/tx.c | 49 |
1 files changed, 29 insertions, 20 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 938c10f7955b..a4c435abe15f 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2417,6 +2417,33 @@ static int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata, return 0; } +static int ieee80211_store_ack_skb(struct ieee80211_local *local, + struct sk_buff *skb, + u32 *info_flags) +{ + struct sk_buff *ack_skb = skb_clone_sk(skb); + u16 info_id = 0; + + if (ack_skb) { + unsigned long flags; + int id; + + spin_lock_irqsave(&local->ack_status_lock, flags); + id = idr_alloc(&local->ack_status_frames, ack_skb, + 1, 0x10000, GFP_ATOMIC); + spin_unlock_irqrestore(&local->ack_status_lock, flags); + + if (id >= 0) { + info_id = id; + *info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; + } else { + kfree_skb(ack_skb); + } + } + + return info_id; +} + /** * ieee80211_build_hdr - build 802.11 header in the given frame * @sdata: virtual interface to build the header for @@ -2710,26 +2737,8 @@ static struct sk_buff *ieee80211_build_hdr(struct ieee80211_sub_if_data *sdata, } if (unlikely(!multicast && skb->sk && - skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) { - struct sk_buff *ack_skb = skb_clone_sk(skb); - - if (ack_skb) { - unsigned long flags; - int id; - - spin_lock_irqsave(&local->ack_status_lock, flags); - id = idr_alloc(&local->ack_status_frames, ack_skb, - 1, 0x10000, GFP_ATOMIC); - spin_unlock_irqrestore(&local->ack_status_lock, flags); - - if (id >= 0) { - info_id = id; - info_flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; - } else { - kfree_skb(ack_skb); - } - } - } + skb_shinfo(skb)->tx_flags & SKBTX_WIFI_STATUS)) + info_id = ieee80211_store_ack_skb(local, skb, &info_flags); /* * If the skb is shared we need to obtain our own copy. |